[Answered ]-How to validate number in django

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class MyForm(forms.Form):
    field_one = forms.IntegerField(required=False)
    field_two = forms.IntegerField(required=False)

    def clean(self):
        cleaned_data = self.cleaned_data
        field_one = cleaned_data.get('field_one')
        field_two = cleaned_data.get('field_two')

        if not any([field_one, field_two]):
            raise forms.ValidationError(u'Please enter a value')

        return cleaned_data
  • Using an IntegerField will validate that only numeric characters are
    present, covering your blank space use case.
  • Specifying required=False on both fields allows either field to be left blank.
  • Implementing clean() on the form gets you access to both fields.
  • .get() will return None if the key isn’t found, so the use of
    any([field_one, field_two]) will return true if at least one of the
    values in the list isn’t None. If neither value is found, the
    ValidationError will be raised.

Hope that helps you out.

👤Brandon Taylor

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